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CHANGELOG.md

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News

v0.6.0 - unreleased

  • (breaking) Some fields of EntanglerProt were renamed for consistency with other protocols. More such renaming is to be expected, for consistency's sake.
  • (breaking) The StatesZoo now integrates with the genqo python package, to provide high accuracy models of the ZALM entanglement source. The previous implementation of the ZALM source was removed.
  • (breaking) Renaming wait(::MessageBuffer) and onchange_tag(::Register) to onchange.
  • (fix) observable used to incorrectly handle subsystem permutations on some backends in some edge cases, giving wrong results.
  • (fix) Tensor products of operators are now better supported in apply! for CliffordRepr
  • Querying functions now also return the time at which a tag was tagged.
  • query_wait now exists as a much simpler alternative to onchange followed by query.
  • GraphStateConstructor protocol and related tooling for modeling of the iterative construction of a graph state out of Bell pairs.
  • Protocol constructors moving to having constructors that do not require sim to be explicitly specified.
  • Noise types now have default parameters, for ease of construction in examples. The default values generally correspond to near-zero noise (e.g. decoherence time of 1e9).
  • Protocols (subtypes of AbstractProtocol in the ProtocolZoo) now have rich show methods for the image/png and text/html MIME types
  • Unexported function permits_virtual_edge to describe whether a protocol can run between two nodes that are not directly connected.
  • Non-public functions parent, parentindex, name, namestr, timestr, compactstr, available_protocol_types, available_slot_types, available_background_types, constructor_metadata for better introspection capabilities and cleaner printing.
  • T1T2 noise has been added.

v0.5.1 - 2025-07-14

  • Add classical_delay and quantum_delay as keyword arguments to the RegisterNet constructor to set a default global network edge latency.
  • onchange_tag now permits a protocol to wait for any change to the tag metadata. Implemented thanks to the new AsymmetricSemaphore, a resource object that allows multiple processes to wait for an update.
  • Plots of networks can now overlay real-world maps (see generate_map).
  • A "state explorer" tool was added to the plotting submodule and as an interactive example, to heal visualize many of the states in StatesZoo.
  • Additional filtering and decision capabilities in EntanglerProt.
  • Fixes and additions to available background noise processes.
  • Rebuilding the ZALM source from StatesZoo in a more reproducible fashion.
  • Fixes and performance improvements to observable.
  • New examples related to preparing GHZ states and MBQC-based purification.
  • The switch protocol is now back to fully functional, thanks to an upstream fix in GraphsMatching.jl.

v0.5.0 - 2024-10-16

  • Develop CutoffProt to deal with deadlocks in a simulation
  • Expand SwapperProt with agelimit to permit cutoff policies (with CutoffProt)
  • Tutorial and interactive examples for entanglement distribution on a grid with local-only knowledge
  • (breaking) observable now takes a default value as a kwarg, i.e., you need to make the substitution observable(regs, obs, 0.0; time) ↦ observable(regs, obs; something=0.0, time)
  • Bump QuantumSymbolics and QuantumOpticsBase compat bound and bump julia compat to 1.10.
  • Implement a simple switch protocol.
    • Simplify one of the switch protocols to avoid dependence on GraphsMatching.jl. which does not install well on non-linux systems. Do not rely on the default SimpleSwitchDiscreteProt for the time being.

v0.4.2 - 2024-08-13

  • Incorrect breaking release. It should have been 0.5 (see above).

v0.4.1 - 2024-06-05

  • Significant improvements to the performance of query.

v0.4.0 - 2024-06-03

  • Establishing ProtocolZoo, CircuitZoo, and StateZoo
  • Establishing Register, RegRef, and RegisterNet
  • Establishing the symbolic expression capabilities
  • Establishing plotting and visualization capabilities

older versions were not tracked